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Backdoor.ntrootkit Virus/malware

About a week ago I stupidly downloaded some shady p2p music program, and got infected with a bunch of crap. I have succesfully (so it seems) removed a shady porn virus, and the Vundo virus. For a few days I restarted/used my computer numerous times with no new threats. Then, upon start up on the third day I recieved a warning message from AVG( my anti virus program) that there was a threat detected called Backdoor.Ntrootkit on C:\windows\system32\drivers.winsb65.sys. It won't let me delete it or quarantine it. I ran several spyware and anti virus scans in safe mode, which deleted a bunch of stuff, trojan horses, etc. Restarted, no new threat message. All was fine again. THEN, today, after another couple of days I get the very same threat message about the Backdoor.Ntrootkit. It seems to be stubbornly coming back, although I do not know why. I have tried everything I know how to do.
I would appreciate some help with this one, as I don't want my poor laptop to have to suffer with viruses any longer because of my stupidity.
thank you.

When the installation begins, follow the prompts and do not make any changes to default settings.

When installation has finished, make sure you leave both of these checked:

Update Malwarebytes' Anti-Malware

Launch Malwarebytes' Anti-Malware

Then click Finish.

MBAM will automatically start and you will be asked to update the program before performing a scan. If an update is found, the program will automatically update itself. Press the OK button to close that box and continue. If you encounter any problems while downloading the updates, manually download them fromhereand just double-click on mbam-rules.exe to install.

On the Scanner tab:

Make sure the "Perform Quick Scan" option is selected.

Then click on the Scan button.

If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.

The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.

When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".

Click OK to close the message box and continue with the removal process.

Back at the main Scanner screen, click on the Show Results button to see a list of any malware that was found.

Make sure that everything is checked, and click Remove Selected.

When removal is completed, a log report will open in Notepad.

The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.

Copy and paste the contents of that report in your next reply and exit MBAM.

Note: If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.

The power of accurate observation is commonly called cynicism by those who haven't got it.

Did you reboot the computer after using MBAM? If it encounters a file that is difficult to remove, you need to restart the computer so the malware can be fully removed. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. Your log indicates some files will be deleted on reboot. If you have not rebooted, make sure you do this. When done, rescan again with MBAM and check all items found for removal. Then click the Logs tab and copy/paste the contents of the new report in your next reply. If you did reboot, then rescan again anyway and post a new log.

IMPORTANT NOTE: One or more of the identified infections was related to a rootkit component. Rootkits are very dangerous because they use advanced techniques (backdoors) as a means of accessing a computer system that bypasses security mechanisms and steal sensitive information which they send back to the hacker. Many rootkits can hook into the Windows 32-bit kernel, and patch several APIs to hide new registry keys and files they install. Remote attackers use backdoor Trojans and rootkits as part of an exploit to gain unauthorized access to a computer and take control of it without your knowledge.

If your computer was used for online banking, has credit card information or other sensitive data on it, all passwords should be changed immediately to include those used for banking, email, eBay, paypal and online forums. You should consider them to be compromised. They should be changed by using a different computer and not the infected one. If not, an attacker may get the new passwords and transaction information. Banking and credit card institutions should be notified of the possible security breach. Because your computer was compromised please read How Do I Handle Possible Identify Theft, Internet Fraud and CC Fraud?

Although the rootkit was identified and removed, your PC has likely been compromised and there is no way to be sure the computer can ever be trusted again. It is dangerous and incorrect to assume that because the rootkit has been removed the computer is now secure. Further, in some instances an infection may have caused so much damage to your system that it cannot be completely cleaned or repaired. The malware may leave so many remnants behind that security tools cannot find them. Many experts in the security community believe that once infected with this type of malware, the best course of action is to wipe the drive clean, reformat and reinstall the OS. Please read:

That looks much better. Now because of the malware that was found, lets do another scan.

Please print out and follow the instructions for using SDFix in BC's self-help tutorial "How to use SDFix". This program is for Windows 2000/XP ONLY.-- When using this tool, you must use the Administrator's account or an account with "Administrative rights"-- Disconnect from the Internet and temporarily disable your anti-virus and any anti-malware real time protection before performing a scan.When done, the SDFix report log will open in notepad and automatically be saved in the SDFix folder as Report.txt. Please copy and paste the contents of Report.txt in your next reply. Be sure to renable you anti-virus and and other security programs before connecting to the Internet.

Your decision as to what action to take should be made by reading and asking yourself the questions presented in the "When should I re-format?" and What Do I Do? links I previously provided. Wiping your drive, reformatting, and performing a clean install of the OS removes everything and is the safest action but I cannot make that decision for you.

If you're not going to do that, you should Create a New Restore Pointto prevent possible reinfection from an old one. Some of the malware you picked up could have been saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.

Then use Disk Cleanup to remove all but the most recently created Restore Point.

Go to Start > Run and type: Cleanmgr

Click "Ok".

Click the "More Options" Tab.

Click "Clean Up" in the System Restore section to remove all previous restore points except the newly created one.

• Avoid gaming sites, underground web pages, pirated software sites, and peer-to-peer (P2P) file sharing programs. They are a security risk which can make your computer susceptible to asmörgåsbord of malware infections, remote attacks, exposure of personal information, and identity theft. Many malicious worms and Trojans spread across P2P file sharing networks, gaming and underground sites. Users visiting such pages may see innocuous-looking banner ads containing code which can trigger pop-up ads and Flash ads that install viruses, Trojans and spyware. Ads are a target for hackers because they offer a stealthy way to distribute malware to a wide range of Internet users. The best way to reduce the risk of infection is to avoid these types of web sites and not use any P2P applications.